Author ORCID Identifier
W. D. Williams: 0000-0001-8446-8329
Document Type
Article
Publication Date
9-1-2024
Publication Title
Physical Review A
Abstract
We report on the absolute energy of the 2β’π β’3β’π β’1β’π0 state in neutral 9Be. In doing so, we measure the transition frequencies of the 2β’π 2β’1β’π0β 2β’π β’2β’πβ’1β’πβ1 and 2β’π β’2β’πβ’1β’πβ1β 2β’π β’3β’π β’1β’π0 transitions, also determining the absolute energy of the 2β’π β’2β’πβ’1β’πβ1 state. The results are obtained from a home-built hollow cathode discharge lamp using saturated absorption spectroscopy with laser frequencies referenced to a frequency comb. The transition frequencies are determined to be 1276080080β’(50) and 363105650β’(130) MHz for the 2β’π 2β’1β’π0β 2β’π β’2β’πβ’1β’πβ1 and 2β’π β’2β’πβ’1β’πβ1β 2β’π β’3β’π β’1β’π0 transitions, respectively. The absolute energies are determined to be 42565.4498β’(17) and 54677.350β’(5) cmβ1 for the 2β’π β’2β’πβ’1β’πβ1 and 2β’π β’3β’π β’1β’π0 states, respectively. The results confirm recent theoretical calculations that included πΌ6 (QED) corrections. All experimental results are limited by unresolved hyperfine structure.
Volume
110
Issue
3
DOI
10.1103/PhysRevA.110.032818
ISSN
24699926
Recommended Citation
Ahrendsen, K. J.; Karani, T.; and Williams, W. D., "Precision Measurement of the Absolute Energy of the 2s3s 1s0 State in Neutral 9Be" (2024). Physics: Faculty Publications, Smith College, Northampton, MA.
https://scholarworks.smith.edu/phy_facpubs/109
Comments
Archived as published.